11255501025 has 36 divisors (see below), whose sum is σ = 20855032380. Its totient is φ = 5795932800.

The previous prime is 11255501017. The next prime is 11255501039. The reversal of 11255501025 is 52010555211.

11255501025 is a `hidden beast` number, since 1 + 1 + 2 + 5 + 550 + 102 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 55935441 + 11199565584 = 7479^2 + 105828^2 .

It is not a de Polignac number, because 11255501025 - 2³ = 11255501017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11255501025.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 855966 + ... + 869015.

It is an arithmetic number, because the mean of its divisors is an integer number (579306455).

Almost surely, 2^11255501025 is an apocalyptic number.

11255501025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11255501025 is a deficient number, since it is larger than the sum of its proper divisors (9599531355).

11255501025 is a wasteful number, since it uses less digits than its factorization.

11255501025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725026 (or 1725018 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

The spelling of 11255501025 in words is "eleven billion, two hundred fifty-five million, five hundred one thousand, twenty-five".